Electric signaling system.



No. 815,890, PATENTED MAR. 20, 1906.

- s. M. YOUNG. ELECTRIC SIGNALING SYSTEM.

APPLICATION FILED OUT. 18. 1904.

2/911 44 0 age a cites the transformers 1 7, and through their secondaries relay-magnets i9, which attract, their armatures 20, thus closing the local c1rcuits 21, and'through'the solenoids 22 drawingthe semaphore arms to the clear posisition, as illustrated in blocksections B C.

' The difference of potential between the rails the semaphore to be moved by the'wei ht 25 to the dangerposition, as shown in bloc -section A.

This application is a division of my application, Serial No. 144,548,-filed February'21, 1903, and generally describes'the apparatus involved in carrying out the method of .operation described in-my companion application, Serial No. 160,086, filed June 4, 1903.

Having'thus described my invention, I claim'- 1. -A signaling system comprising a source of power-current, a source of alternating current, a distributing-circuit having the trafficrails divided into blocks and in which each of the traffic-rails separately and independ ently serves as a return-path to the sources of current, motor-vehicles actuated by one current, signaling devices actuated by the other current, and means controlled by the movements of the motor-vehicles for controlling the movements of' the signaling devices.

2. A signaling system comprising a source of power-current, a source of alternatingcurrent, conductors leading therefrom comprising independent out-going conductors and,

separate and independent return-conductors to the sources of current, motor-vehicles actuated from one current, signaling devices actuated from the other current, and means carried by the moving vehicles adapted to deenerg'ize the signaling devices.

3. A signaling system comprising a source of power-current, a source-of alternating'current, conductors leading from said sources of current comprising independent outgoing conductorsand separate and independent return-conductors -to the sources of current, transformers having their primaries connected-across the outgoing conductor frointhc source of alternating current and a returnconductor, and signaling devices controlled by the current from the secondaries of said transformers.

4. A signaling system comprising a source of power-current, a source of alternating current, a system of conductors formedin part by the traffic-rails and divided into blocks, means whereby the ower-current 'will flow over each of said tra c-rails as separate and independent return-conductors to the sources of current, means for creating an alternating difference of potential between'the rails of each block, signaling devices in each block normally in the clear position through the influence of said alternating difference of potential, and motor-vehicles actuated by the power-current and provided with means i for short-circuiting the. signaling devices'of the blocks when motor vehicles move into the blocks.

5. A signalingsystem comprising, a source of power-current, a sourceof alternating current, a distributing system involving the em- 'ployment of both-trafiic-rails as separate and independent return-conductors to the sources of current, transformers energized by said alternating current, signaling devices energized by said transformers, motor-vehices and devices carried by said motor-vehicles for shunting the current from the transformers around-the signaling devices.

6. "A'signa i 0t power-current, a source of alternating current, a working circuit wherein each of the traffic-rails form separate and independent return-paths to the sources of current, motor-vehicles in said working-circuit energized nating current, and means carriedIby-the motor-vehicles for shunting the alternatingcurrent around certain ofthe signaling devices.

7. Asignaling system comprising a source of power-current, a source of alternating current, a working circuit wherein each of the trafiic rails separate motor-vehicles energi ed by thepower-current, transformers energize by the alternatand independently, form return-paths to t e sources f-current,

ing current, andrelay devices energized by" the current from the transformers.

8. A signaling system comprising a source ng system comprising a source 'by the'power current, signaling devices in i said working circuit energizedby the alterof power-current, a source of alternating current, a working circuitwherein each of the traffic rails se a'ratel and independently .form return-pat sto t e sources of current and over which rails both currents are transmitted, motor devices actuated by the power-current, signaling devices actuated by the alternating current, and means for differbetween the evices adapted to beactu'ated.

by them.

9. A signaling system comprising a source of power-current, a source of alternating cur rent, a working circuit wherein each of the traffic-rails form separate and independent r20 entiating the ower and alternating currents return-paths to the sources of current and over which both currents are transmitted,

current-transforming devices having their 13o primaries connected across the terminals of the source of alternating current and their secondaries across block-sections of the traf fic-rails, relays connected acrossthe blocksections of the traffic-rails, and means for preventing the power-current flowing in the traffic-rails from flowing through said relays.

1.0. A signaling system comprising a source of power-current, a source of alternating current, a distributing system comprising an o'utgoing feeder over which a powercurrent is flowing, a feeder over which an alternating current is ilowing;traliic-rails di videdinto. independent block-sections and serving as separate and independent returnrentin said working circuit, an alternatingcurrent impressed upon said working circuit, a motor-vehicle actuatedby said-.power-cur- 'rent, and signaling devices energized by said alternating current, said inotorvehiclecarrying n'ieans for shunting said alternating current around the signaling devices of a sec tion when .a car enters a section.

12. In a signaling system, the combinationof asource of power-current,a source of alternatingcurrent, a distributing-circuit involving the employment of the traffic-rails as separate and independent paths to the sourcesgof current and such traffic-rails di-v vided into block-sections, transformers having their primaries energized by the alternating current and thelr secondar es connected across the trahic-rails of a block.

13.- A signaling system comprising'two sources of electric energy difi'eringin charac ter, a distributing-circuit over which both currents-are transmitted and formed in part by the traiiic-rails of thesystem, said trafficrails divided into blocks and adapted to se arately and independently form returnpat s to the sources of energy, motor-vehicles upon said railway actuated by one of said currents, "signaling devices normally energized by the other of said currents, and. means carried by the motor-vehicles ffor short-circuiting the signaling devices of a block-as the vehicle moves into a block.

-' in 1-4. A signaling system comprising two sources of energy "differing in characte1 ','a'

working circuit divided into a series of-iride-.

pendent sections, each of said sections formed in partby a continuous rail and a divided rail, which rails separately and independently form return-paths for the currents employed in operating the railway, a motorvehicle operated by one of said currents, and

signaling devices actuated by the other of said currents, said motor-vehicle carrying means for shunting the current employed to actuate the signaling device of a sectionwhen a car moves into a section;

15. A signaling system cornprsing two sources 'of-currcnt dlfl'erlng n character, a working circuit divided into a series'of independent. sections. and of wh ch the trailicrails form a part and serve as separate and independentreturn-paths to the sources of energy, meanstin said sections for differentiatig said transmitted currents between a motor-vehlcle and a signalin device, and means carried by the niotor-ve Zcle. for short-circuiting the signaling device when a motorsves hicle moves into a section.

16. A sIgnaling system comprising two sources of current d fi'erlng in character, a working circuit divided whfeh the traffic-rails form separate and independent return-paths to the sources of energy, reactance devices in the track-sections adapted-to permit-the flow of current from one source-but to cut down. the flow of current from the other source, lIlOtUIL-VG-hiClQS into sections and of c operated by the current from one source, signaling devices in each sectlonoperated by the current from the other source, and means "carried by' the, motor-vehicle for' short-cirevices' when a motorcuItI-ng the signaling vehicle moves into a section. c I

17. A signaling syst'e -n in which the tra'fiicrails serve as separate and independent'return-paths for the power and signal currents to the sources of e'nergy.

18. A system of automatic signaling comprfsing a'source of power-current, a source of alternating s'gnalinguurrent, a trackwa di+ vided-intoblock-sections with each rai arranged toIserve asa separate and independent return path for the power-current, means for exciting an alternating difference ofpotential between the rails of each block-section,

means for limitin the diiference of potential excited ina bloc -section to that section, a

signaling device. in each block-section, and

.means controlled'by the movements. of the- .cars, which will control the signaling devices;

19. A system of automatic signalmg comprising a source of power-currenmja source of alternati'n" signaling-current, atrackway dithe movements of vide'd into lock-sections having one rail continuous and the other separated into, insulated lengths and with each rail' arranged to serve as a separate and independent returnpath for the power-current,-means for exciting an alternating, difference.- of potential between, the rails ofeach block-section, inductance-bonds located to limitthe difference of j whole power-current back to the source of l power-current but limit the difference of poi tential between the rals, of a block-section to Mon, and means controlled by the movepotential encited in a blo'ck-sect'on to that section, a signaling device in each block-secrnents of the cars, which will control the movements of the s gnaling devices.

20.1Asystem'oi automatic signaling compris'ng a source of power-current, a source of alternating s gnaling-current, a trackway divided into block-sections with each rail arranged to serve as a separate and independent return-path for the power-current, an induction'device interposed between the source of signaling-current and therals ofeach 5.

block-section for excfting an alternating, difference of potential between sa d rails, re-

actance devicesfor limitingthedifi'efence of potential excited in a block-sect'onito that section, a s gnal'ing device in each block-sectron, and=means controlled b Y the move- I mentsof the cars, which wil control the movements of the s'gnalng devices.

f gir -A system of automat'c s'gnaling com pr sing a source of pmvencurrent, a sourco of alternatIng signahng-current, a trackwa -diwtded into block-sections with each 'rai arrangedto serve as a separate and independent return-path for the power current; means for exciting an, alternating d..fierence of po tent? al between the rails of each block-section, means for limiting the difierenee of potential excitedin afblock-section to that sect on, a signaling device in each blocksect'on, and

'anrinductkm device interposed between the rails-andthe s'gnaling device adapted to be controlled by the movements-of the cars and which will control the movements of the signaling devces.

e 22. A system of automaticsignaling comprising a source of power-current, a source of alternating sIgnaling-current,'a trackway djvided into block-sections with each rail arranged to serve as a separate and independentreturn-path for the power current, means for exciting an alternating difference of potential between the rails of each block-section, means interposed between the blocks which will freely permit the passage of'the inents of the cars, wh'ch will control the tron, means wh'ch will permit the free movements of the sgnaling devices.

. 23. A system of automatic signaling compris'ng a source of pmver-current, a source of alternating s:gimling-currcnt,a trackwav divided into block-sections withench rail ar ranged. toscrve as a scpnrnte and independent return-path for the power-current, means for exc tng an alternnt ng dil'ercnce of potent'al between the rnzls of ear-h block-section, means Interposed between the blocks wh'ch \irllfrecly permit the passage of the whole power-current back to the sourceol powercurrent, but l.m-.t the d flerence of potential between the rals of adjacent block-sections to the sections wh'ch at the time are unoccup'cd a sYgnaLng dev co in each block-section,

andmcnns controlled by the movements of the cars, which will control the movements of the s gnal ng devices.

24. A system of automatic s gnahng cone pr sing a "source of pmver-currcnt, a source of alternating signaling-current, a trackway divded into block-sections with each ra l arranged to serve as a separate and independent return-path for the power current, means for cxcibng an alternating difference of potcnt al between the rails of each block-secsage of the power-current, but present I impedance to the passage of the alternating current from block-section to block-section. a s gnal'ng devicein each block-section, and means controlled by the movements of the cars, which will control the n'iovemcnts of the signal ng devices. i

In test mony whereof I allix my signature in the presence of two Witnesses.

SAMUEL MARSH YOUNG.

Witnesses.

J. E. PEARSON, FRANK ()(om-:on.

lpnsugh 

